Improved ore-concentrator and separator



JAMES EDGAR, OF'NEW YORK, N. Y.

Letters .Patent N 97,488, dated December 7, 1869.

IMPROVED ORE-CONCENTRATQR AND SEPARATOR.

The Schedule referred to in these Letters Patent and making part of thesame.

To all whomit may concern:

B: it known that I, JAMES EDGAR, oi New York. in the county and State ofNew York, have invented a new and improved Mode of Ooncentratiug andSeparaiing Ores, called Edgars Reciprocating Goncem trator, and I herebydeclare that the following is a full and exact description of the same,reference being had to the accompanying drawings, and to the letters ofreference marked thereon, making a 'part of this specification.

The nature Vof my inventionconsists in giving a vertical motion to thecylinder or vessel in which the pnlverized ore is placed, and applyingto the ore, at

the same moment, a pressure of air, by which motion the adhesion of theparticles of the ore upon each other is regularly broken or disturbed,thus' greatly facilitating and hastening the separation ot'` the ores,while the pressure oi' air regulatesthe descent of the particles in thecylinder or other vessel, and causes them to take their places at thebottom thereof', according to their specific gravity, the heaviestunderneath.

To enable those skilled in thc art to make or use my invention, l willproceed to describe its construction and operation.

Figure 1,.ot` the accompanying drawings, presents a top view of theapparatus, and

Figure 2, a side elevationthereof.

This apparatus consists oi' a cylinderor other vessel, of any convenientshape, (l a a, open at Vtop to receive the dry pulver-ized ore.

b b are two levers, which receive their motion from two cams c c, andcommunicate avertit-al motion to said cylinder or vessel by acting onthestuds d ll.

e e are also two levers, receiving their motion from the cams, f f, and,by means oil the connecting-rod g, give motion to the bellows h h.

The dotted lines j It l m represent the section of a movable bottom,which may be withdrau'n at pleasure.

l m is anair-tight bottom.

k Z, an ainchamber.

k is a finely-perforated or tine-cloth partition, forming the movablebottom.

From k to j ,is the space where the concentrated ore is found.

be easily understood.

rlhe letters represent the same parts in each drawing.

The dry pulverized orel is put in at the top of the cylinder o a, (whichmay be of any shape and size,) and falls upon the perforated bottom k.lThe camshaft p p is then put in motion, which gives aregularly1ecurring vertical movement to the cylinder a. a, 'and thus tothe ore, by which process the adhesion oi' the particles of the ore uponeach other is broken or disturbed, and the particles sot free from eachother.

h 7L is a bellows, from which nir is pressed, through the passage i,into the air-clmmlwr la and passesnp through the perforated bottom k,and checks the gravitation of the ore, so that those particles ofthegreat- -est specific gravity take their place at thc bottom of thecylinder, immediately upon the peribrated bottom k, while the otherparticles range themselves above, according to their relative speciliogravity, the lightest uppermost.

This motion ofthe cylinder maybe given in various other ways besides bythe use oi' cams as above described.

The apparatus may bc constructed of any kind of material foundconvenient, and oi such dimensions as may suit the amount of work to bedone, and may be drivenby any motive-power now in use, by means ofgearing, belts, and cranks.

I claim, as my invcntion-' The impart-ing of the vertical motion to saidcylinder or other-shaped vessel a n, which contains the ore, and therebydestroying the adhesion of the particles, and, while in this condition,bringing. upon them a pressure of air, which may be supplied by bellows,or pump, or in any other way found convenient.

JAMES EDGAR.

Witnesses:

M. F. Dickinson, Jr., E. P. NETTLETON.

